You can optionally append a short observation in the first rendered line by adding the third parameter.

The optional parameters |kl = lang and |vl = lang may be used to specify explicitly the language code of the target pages for links in the rendered tags. Without them, this template will attempt to locate a translation in the same language as the current page (as determined by {{Langcode}}), or will link to the default page (usually in English) if there's still no translation available. This may be needed if there are too many costly parser calls (caused by tests of existences of translated pages), when you know that the target translated page exists (look at the links in rendered page to see if they point to the English page or a translation: if a language code prefix is present in the link, you may safely specify these parameters).

Examples

{{PossibleSynonym|shop|car_wash}} to indicate the tag shop=car_wash is a possible synonym of the current page: